As I'm taking off from 0mph, if I step on the gas I can hear my tires in the rear sounding as if they are grinding with the asphalt below. What could that be, shocks? The front ones have been replaced but the rear are still the stock ones from the factory never replaced. This is a 2007 dodge ram 2500 hemi. Could anything else cause this? When I say grinding, it's not the screeching noise or anything from someone flooring it.

 

Secure the truck, lift the rear and with it in neutral, rotate the wheels by hand and see if you can duplicate it

 

Bad wheel bearings

 

Weed's got it. Can be a number of things. That would be the easyst way to pin point isssue.